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Propagation of trust and distrust

R. Guha, Ravi Kumar, Prabhakar Raghavan, Andrew Tomkins
2004 Proceedings of the 13th conference on World Wide Web - WWW '04  
A network of people connected by directed ratings or trust scores, and a model for propagating those trust scores, is a fundamental building block in many of today's most successful e-commerce and recommendation  ...  We develop a framework of trust propagation schemes, each of which may be appropriate in certain circumstances, and evaluate the schemes on a large trust network consisting of 800K trust scores expressed  ...  We would in particular like to thank Nirav Tolia and Joel Truher for all their help. We would also like to thank Naval Ravikant, Benchmark Capital and August Capital for helping create Epinions.  ... 
doi:10.1145/988672.988727 dblp:conf/www/GuhaKRT04 fatcat:om3mcm4jjncwpmpyzmbphcieqm

Enhanced Recommendations through Propagation of Trust and Distrust

Patricia Victor, Chris Cornelis, Martine Cock
2006 2006 IEEE/WIC/ACM International Conference on Web Intelligence and Intelligent Agent Technology Workshops  
The incorporation of a trust network among the users of a recommender system (RS) proves beneficial to the quality and amount of recommendations.  ...  In this paper, we advocate the use of a trust model for RSs in which trust scores are (trust,distrust)-couples, drawn from a bilattice.  ...  Acknowledgments Patricia Victor would like to thank the Institute for the Promotion of Innovation through Science and Tech-nology in Flanders (IWT-Vlaanderen) for funding her research.  ... 
doi:10.1109/wi-iatw.2006.66 dblp:conf/iat/VictorCC06 fatcat:5peqt3epp5ddpidqon5swk7zx4

A Many Valued Representation and Propagation of Trust and Distrust [chapter]

Martine De Cock, Paulo Pinheiro da Silva
2006 Lecture Notes in Computer Science  
As the amount of information on the web grows, users may .nd increasing challenges in trusting and sometimes distrusting sources. One possible aid is to maintain a network of trust between sources.  ...  This allows to elegantly handle together the problem of ignorance, i.e. not knowing whether to trust or not, and vagueness, i.e. trust as a matter of degree.  ...  Acknowledgments Martine De Cock would like to thank the Fund for Scienti c Research-Flanders for funding her research, and the members of the Knowledge Systems Lab at Stanford University for their hospitality  ... 
doi:10.1007/11676935_14 fatcat:q3qiqahkqjhclptlclhsrh2aki

Propagating Trust and Distrust to Demote Web Spam

Baoning Wu, Vinay Goel, Brian D. Davison
2006 Workshop on Models of Trust for the Web  
Experiments show that combining trust and distrust values can demote more spam sites than the sole use of trust values.  ...  In addition, we investigate the possibility of propagating distrust among web pages.  ...  We are grateful to Urban Müller for helpful discussions and for providing access to the search.ch dataset.  ... 
dblp:conf/mtw/WuGD06 fatcat:zzuriiqicfemhiupllsl77qnzm

Propagating Both Trust and Distrust with Target Differentiation for Combating Web Spam

Xianchao Zhang, You Wang, Nan Mou, Wenxin Liang
2011 PROCEEDINGS OF THE THIRTIETH AAAI CONFERENCE ON ARTIFICIAL INTELLIGENCE AND THE TWENTY-EIGHTH INNOVATIVE APPLICATIONS OF ARTIFICIAL INTELLIGENCE CONFERENCE  
The proposed Trust-Distrust Rank (TDR) algorithm not only makes full use of both good seeds and bad seeds, but also overcomes the disadvantages of both existing trust propagation and distrust propagation  ...  A serious issue of existing algorithms is that trust/distrust is propagated in non-differential ways.  ...  Acknowledgments We are grateful to Liang Wang and Shaoping Zhu for their helpful comments and discussions.  ... 
doi:10.1609/aaai.v25i1.8083 fatcat:x5ggofbwljepxoh3s4iiezeqki

A Survey on Trust and Distrust Propagation for Web Pages

Zenith Azim, Gypsy Nandi
ADBU-Journal of Engineering Technology   unpublished
We have surveyed all the major spam detection techniques and provided a brief discussion on the pros and cons of all the existing techniques.  ...  Over the last decades researchers are trying to design different techniques to identify the web spam pages so that it does not deteriorate the quality of the search results.  ...  These algorithms fall under two categories -Trust propagation and Distrust propagation.  ... 
fatcat:7nhwnj64u5hvdfdkbhbo54ypsu

Is distrust the negation of trust?

Jiliang Tang, Xia Hu, Huan Liu
2014 Proceedings of the 25th ACM conference on Hypertext and social media - HT '14  
while the results of the second task help us figure out how valuable the use of distrust in trust prediction.  ...  The first task is to predict distrust from only trust, and the second task is to predict trust with distrust. We conduct experiments in real-world social media data.  ...  Acknowledgments The work is, in part, supported by Army Research Office (#025071) and The Office of Naval Research (N000141410095).  ... 
doi:10.1145/2631775.2631793 dblp:conf/ht/TangHL14 fatcat:epxp4mvp6rbm3i4ozik233ujsq

Propagating Both Trust and Distrust with Target Differentiation for Combating Link-Based Web Spam

Xianchao Zhang, You Wang, Nan Mou, Wenxin Liang
2014 ACM Transactions on the Web  
The proposed Trust-Distrust Rank (TDR) algorithm not only makes full use of both good seeds and bad seeds, but also overcomes the disadvantages of both existing trust propagation and distrust propagation  ...  A serious issue of existing algorithms is that trust/distrust is propagated in non-differential ways.  ...  Acknowledgments We are grateful to Liang Wang and Shaoping Zhu for their helpful comments and discussions.  ... 
doi:10.1145/2628440 fatcat:5khsz3plnvgrbo4z5ewnsknkq4

Trust- and Distrust-Based Recommendations for Controversial Reviews

Patricia Victor, Chris Cornelis, Martine De Cock, Ankur M. Teredesai
2011 IEEE Intelligent Systems  
they succeed in utilizing the additional trust and distrust information to their advantage.  ...  We compare the performance of several well-known trustenhanced techniques for recommending controversial reviews from Epinions.com, and provide the first experimental study of using distrust in the recommendation  ...  This results in extended versions of the strategies in the lower part of Table 1 . When considering trust propagation and distrust filtering, we need a definition of distrust propagation.  ... 
doi:10.1109/mis.2011.22 fatcat:n6fxpiwgbzeyjdrxvwjikq6qnu

Enhancing the trust-based recommendation process with explicit distrust

Patricia Victor, Nele Verbiest, Chris Cornelis, Martine De Cock
2013 ACM Transactions on the Web  
While research on the incorporation of trust for recommendations is thriving, the potential of explicitly stated distrust remains almost unexplored.  ...  In this article, we introduce a distrust-enhanced recommendation algorithm which has its roots in Golbeck's trust-based weighted mean.  ...  Note that P is a distrust intensive operator, because a distrusted acquaintance can play a role in the determination of both the trust and distrust degree of the propagated trust score: d 1 appears in  ... 
doi:10.1145/2460383.2460385 fatcat:rldjry24orbupatulfhofuczoq

Gradual trust and distrust in recommender systems

Patricia Victor, Chris Cornelis, Martine De Cock, Paulo Pinheiro da Silva
2009 Fuzzy sets and systems (Print)  
Trust networks among users of a recommender system (RS) prove beneficial to the quality and amount of the recommendations.  ...  , distrust, ignorance, and inconsistency.  ...  Acknowledgements Patricia Victor would like to thank the Institute for the Promotion of Innovation through Science and Technology in Flanders (IWT-Vlaanderen) for funding her research.  ... 
doi:10.1016/j.fss.2008.11.014 fatcat:juiukpffd5cjhg4lf4gans3huq

Towards a Provenance-Preserving Trust Model in Agent Networks

Patricia Victor, Chris Cornelis, Martine De Cock, Paulo Pinheiro da Silva
2006 Workshop on Models of Trust for the Web  
Despite the recent developments in the area, most of the trust models and metrics proposed so far tend to lose trust-related knowledge.  ...  We propose a new model in which trust values are derived from a bilattice that preserves valuable trust provenance information including partial trust, partial distrust, ignorance and inconsistency.  ...  ACKNOWLEDGMENTS Patricia Victor would like to thank the Institute for the Promotion of Innovation through Science and Technology in Flanders (IWT-Vlaanderen) for funding her research.  ... 
dblp:conf/mtw/VictorCCS06 fatcat:26sf53khlzfhrlxsnp4wjw6hwm

Application of Trust and Distrust in Recommender System: A Study

Parthasarathi Chakraborty, Sunil Karforma
2016 International Journal of Computer Applications  
In recent time, trust becomes an important issue in designing effective recommender systems. In this paper we have studied the role of trust and distrust in designing recommender systems.  ...  Recommender systems help customers to choose right product or service from large number of alternatives available on Internet.  ...  In Propagated Distrust model both trust and distrust propagates and belief, B is calculated as difference of the trust and distrust values.  ... 
doi:10.5120/ijca2016909153 fatcat:pawsquxjszbqvjjtfwoczboeku

Preventing Recommendation Attack in Trust-Based Recommender Systems

Fu-Guo Zhang
2011 Journal of Computer Science and Technology  
Furthermore, we propose a data provenance method to trace malicious users and identify the "victim" nodes as distrust users of recommender system.  ...  To the best of our knowledge, there has not any prior study on recommendation attack in a trust-based recommender system.  ...  Distrust Properties In recent years, research on trust in social network has mainly focused on trust and trust propagation instead of distrust and its propagation [14] .  ... 
doi:10.1007/s11390-011-0181-4 fatcat:c4zxpokmu5gb3lffcxqvjb3ha4

Reliability Model Based Dynamic Multi-Level Trust Analysis

Li Zhang, Bin Zhang, Anqing Liu, Liudong Xing
2020 Applied Sciences  
Little work has been done on considering distrust and trust at the same time, especially on the propagation mechanism of distrust.  ...  The propagation of distrust and conflicts of opinions are also handled. Experimental results show that the proposed method outperforms other existing methods.  ...  However, this model adopts the same calculation model for trust and distrust. An important difference in the calculation of distrust and trust is the difference in the way of propagation.  ... 
doi:10.3390/app10175854 fatcat:opms33gx7bef7ogjq5c5jxbopq
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